数据传输方法、接入网设备、终端及通信系统技术方案

本申请提供了一种数据传输方法，第一接入网设备建立第一DRB(数据无线承载)和第二DRB；所述第一接入网设备从第二接入网设备接收转发数据包；所述第一接入网设备将所述转发数据包中不包含流标识的数据包映射到所述第一DRB，所述第一DRB对应于第二接入网设备的DRB；所述第一接入网设备根据第二映射关系，将所述转发数据包中包含流标识的数据包映射到所述第二DRB，所述第二映射关系为所述第一接入网设备中的流与DRB的映射关系，从而，避免在切换或者双连接等场景中，由于每个接入网设备独立配置流与DRB的映射关系而导致的数据丢包或者重复发包的问题，提升终端业务的连续性，提高通信质量。

Data transmission method, access network equipment, terminal and communication system

The application provides a data transmission method. The first access network device establishes a first DRB (data wireless bearer) and a second DRB; the first access network device receives and forwards data packets from the second access network device; the first access network device maps the data packets without flow identification in the forwarded data packets to the first DRB, and the first DRB corresponds to the second access network device According to the second mapping relationship, the first access network device maps the packets containing the flow identification in the forwarding packets to the second DRB, and the second mapping relationship is the mapping relationship between the flows in the first access network device and the DRB, so as to avoid the mapping relationship between the flows and the DRB independently configured by each access network device in the switching or dual connection scenarios As a result, packet loss or repeated contract awarding can improve the continuity of terminal services and communication quality.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。/n

【技术特征摘要】
【国外来华专利技术】20170324...

【专利技术属性】
技术研发人员：韩立锋，黄曲芳，戴明增，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东;44